Johnson Universal Indicator Paper Reel 5m x 7mm Test paper Ph 1 - 14

 

pH Indicator Strips pH range 4.6 - 6.2 - 50 Strips For Homebrew Beer

  Description
 
 The optimum pH of yeast is between 5.2 - 5.5, which falls within the measuring capacity of the narrow-range Beer pH test strip (pH 4.6 - 6.2), to test for beer mash. Johnson Beer pH Strips pH 4.6 - 6.2 is both reliable and easy to read.
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